Milwaukee 3403-20 Drill
- Drill
- 4 amps
- Battery
- 2.1 pounds
A compact, light Milwaukee drill driver suited to general drilling and driving where low weight matters more than top end speed.
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How it ranks among the 369 drills we track
4.6★ across 197 Amazon ratings, Bayesian-smoothed toward the category average.
197 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 369 drills we track - how the scorecard works · full drills data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Drawing up to 4 amps and reaching 1,550 RPM, the Milwaukee 3403-20 is a battery powered drill weighing 2.1 pounds inside a compact 4.1 by 6 by 8 inch body.
At 2.1 pounds this sits toward the lighter end of drill drivers, which helps with overhead work and extended use without arm fatigue. The 1,550 RPM top speed is modest compared to high speed drills, suggesting it is tuned more for driving and general drilling than fast hole boring in metal.
- Battery powered drill
- 4 amp rating
- 1,550 RPM top speed
- 2.1 pound weight, compact 4.1 by 6 by 8 inch size
Who it's for
Tradespeople and DIYers wanting a compact, light drill for general drilling and driving tasks are the target here. Anyone needing higher RPM for aggressive metal drilling should compare against Milwaukee's higher speed drill models.
Strengths and trade-offs
Drawn from this product's published specifications.
- Light at 2.1 pounds for extended use
- Compact footprint for tight spaces
- Battery powered for cordless mobility
- 1,550 RPM top speed is modest for fast drilling
- Battery and charger details not specified
Performance notes
At 4 amps and 1,550 RPM, the motor is set up for controlled drilling and driving rather than high speed boring. The compact 4.1 by 6 by 8 inch footprint and 2.1 pound weight make it easier to maneuver in tight spaces than larger corded drills.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 3403-20 |
| Dimensions & fit | |
| Item Weight | 2.1 pounds |
| Dimensions | 4.1 × 6 × 8 inches |
| Capacity & performance | |
| Speed | 1550 rpm |
| Power & efficiency | |
| Amperage | 4 amps |
| Power Source | Battery |
| Voltage | 220 volts |
Other MILWAUKEE drills
How it compares
This product against the closest alternatives we track in drills.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Milwaukee 3403-20 DrillThis product | 4.6 / 5 | 197 | 4.0 / 5 |
| AVID CD316-20 DrillAVID | 4.6 / 5 | 23,200 | 4.6 / 5 |
| SKIL SD561801 DrillSkil | 4.7 / 5 | 11,399 | 4.6 / 5 |
| Hi-Spec DT30317R-CA DrillHi-Spec | 4.4 / 5 | 14,822 | 4.5 / 5 |
| Fanttik E1 Max DrillFanttik | 4.5 / 5 | 7,298 | 4.5 / 5 |
Similar drills from other brands
Questions about the MILWAUKEE 3403-20
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is the Milwaukee 3403-20 corded or cordless?
It is battery powered.
How much does the 3403-20 weigh?
It weighs 2.1 pounds.
What is the top speed of this drill?
It reaches up to 1,550 RPM.